OpenSubs vs UserDemos

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenSubs compared with UserDemos
Detail	OpenSubs	UserDemos
What it does	Free AI subtitle generator that runs entirely in your browser	Build animated product demos from your website with AI
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Paid
Pricing	Free: transcription, translation on-device, all 12 subtitle styles, word-by-word highlighting, trimming, burning into video, and all export formats. Credits: $5 for 1,000 credits for cloud translation (approximately 1 credit per 30 subtitle lines).	Starter: £19 per month with monthly build usage, hosting for up to 3 live demos, background music, generated narration, and 2 users included. Pro: £39 per month with 3× the monthly usage of Starter, hosting for up to 10 live demos, background music, generated narration, and unlimited users. Usage pa
Key features	Speech recognition in the browser using Whisper Translation to 20 languages including Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainia Burn subtitles into MP4 without watermark Export to SRT, VTT, ASS and TXT formats Live subtitles over video playing in browser tabs via extension Support for multiple video formats including MP4, MOV, WebM and MKV No server processing—all work runs locally on user's machine	AI-generated animated demos from website screenshots Embed anywhere with HTML or iframe code Generated narration and background music Works with Webflow, WordPress, Framer, HubSpot, Squarespace, Shopify, Next.js No watermark or player branding Dashboard to manage all live demos Draft review before publishing Control over when demos go live
What makes it different	100% browser-based with no uploads—the video never leaves your machine Completely open source under AGPL-3.0-or-later so you can verify the code Free forever for transcription, styling and burning—pay only for optional cloud translation No watermark, no file-size limit, no queue, and no account needed to try	No recording or scripting required - select screens and AI generates the demo
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	34 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	10	0
Citation Flow (Majestic)	30	0
Referring domains (Majestic)	96	0

4 details filled in for both companies.

More alternatives to OpenSubs More alternatives to UserDemos